> <@matthewcroughan:defenestrate.it> In my home-manager config, I do the following:
> ```nix
>   qt = {
>     enable = true;
>     platformTheme = "gnome";
>     style = {
>       name = "adwaita-dark";
>       package = pkgs.adwaita-qt;
>     };
>   };
> ```
> 
> This is supposed to set up `QT_` variables. The following lines of Nix in `qt,nix` from home-manager do it:
> https://github.com/nix-community/home-manager/blob/master/modules/misc/qt.nix#L99-L102
> 
> This qt.nix uses `home.sessionVariables` to accomplish it, which puts the following in ~/.profile:
> `. "/etc/profiles/per-user/matthew/etc/profile.d/hm-session-vars.sh"`
> 
> Then, `hm-session-vars.sh` has the following in it:
> ```
> export QT_QPA_PLATFORMTHEME="gnome"
> export QT_STYLE_OVERRIDE="adwaita-dark"
> ```
> 
> The problem is that nothing is sourcing ~/.profile. `gdm` won't, `sddm` won't. So it never works out.
> 
> Instead of `sway` I need to `bash -l -c sway`, then it'll source my `~/.profile` regardless, as mentioned in https://github.com/swaywm/sway/issues/3109

I think I had similar issues.
I needed to add 'exec ${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1' to the config.
But I was using polkit anyway. Though that seemed to fix my sourcing problems.